wimfs_link(), wimfs_symlink(), symlink fixes

[wimlib] / src / wimlib_internal.h

diff --git a/src/wimlib_internal.h b/src/wimlib_internal.h
index 28edf93ff510f28ae52c0fd7f870b69174d1b0f2..d9c7775647063c3e3732c71338bd66b302ca874d 100644 (file)
--- a/src/wimlib_internal.h
+++ b/src/wimlib_internal.h
@@ -31,7 +31,10 @@
 
 struct stat;
 
+#ifndef WIM_HASH_SIZE
 #define WIM_HASH_SIZE  20
+#endif
+
 #define WIM_MAGIC_LEN  8
 #define WIM_GID_LEN    16
 #define WIM_UNUSED_LEN 60
@@ -44,8 +47,8 @@ struct stat;
  * of this size. */
 #define WIM_CHUNK_SIZE 32768
 
-/* Version of the WIM file.  I don't know if there has ever been a different
- * version or not. */
+/* Version of the WIM file.  There is an older version, but we don't support it
+ * yet.  The differences between the versions are undocumented. */
 #define WIM_VERSION 0x10d00
 
 enum wim_integrity_status {
@@ -205,6 +208,9 @@ struct wim_security_data {
        u32 refcnt;
 } WIMSecurityData;
 
+struct link_group_table;
+
+
 /* Metadata resource for an image. */
 struct image_metadata {
        /* Pointer to the root dentry for the image. */
@@ -217,6 +223,9 @@ struct image_metadata {
         * resource. */
        struct lookup_table_entry *metadata_lte;
 
+       /* Hard link group table */
+       struct link_group_table *lgt;
+
        /* True if the filesystem of the image has been modified.  If this is
         * the case, the memory for the filesystem is not freed when switching
         * to a different WIM image. */
@@ -317,6 +326,14 @@ static inline void print_hash(const u8 hash[])
        print_byte_field(hash, WIM_HASH_SIZE);
 }
 
+/* hardlink.c */
+
+struct link_group_table *new_link_group_table(u64 capacity);
+int link_group_table_insert(struct dentry *dentry,
+                           struct link_group_table *table);
+void free_link_group_table(struct link_group_table *table);
+u64 assign_link_groups(struct link_group_table *table);
+
 
 /* header.c */
 extern int read_header(FILE *fp, struct wim_header *hdr, int split_ok);
@@ -329,6 +346,9 @@ extern int write_integrity_table(FILE *out, u64 end_header_offset,
                                 int show_progress);
 extern int check_wim_integrity(WIMStruct *w, int show_progress, int *status);
 
+/* modify.c */
+extern void destroy_image_metadata(struct image_metadata *imd,
+                                  struct lookup_table *lt);
 
 /* resource.c */
 extern const u8 *get_resource_entry(const u8 *p, struct resource_entry *entry);
@@ -367,7 +387,7 @@ static inline int read_full_resource(FILE *fp, u64 resource_size,
                                resource_original_size, 0, contents_ret);
 }
 
-extern int write_file_resource(struct dentry *dentry, void *wim_p);
+extern int write_dentry_resources(struct dentry *dentry, void *wim_p);
 extern int copy_resource(struct lookup_table_entry *lte, void *w);
 extern int copy_between_files(FILE *in, off_t in_offset, FILE *out, size_t len);
 extern int write_resource_from_memory(const u8 resource[], int out_ctype,
@@ -375,6 +395,7 @@ extern int write_resource_from_memory(const u8 resource[], int out_ctype,
                                      u64 *resource_size_ret);
 extern int write_metadata_resource(WIMStruct *w);
 
+
 /* security.c */
 int read_security_data(const u8 metadata_resource[], 
                u64 metadata_resource_len, struct wim_security_data **sd_p);
@@ -383,6 +404,15 @@ void print_security_data(const struct wim_security_data *sd);
 u8 *write_security_data(const struct wim_security_data *sd, u8 *p);
 void free_security_data(struct wim_security_data *sd);
 
+/* symlink.c */
+ssize_t dentry_readlink(const struct dentry *dentry, char *buf, size_t buf_len,
+                       const WIMStruct *w);
+extern void *make_symlink_reparse_data_buf(const char *symlink_target,
+                                          size_t *len_ret);
+extern int dentry_set_symlink(struct dentry *dentry,
+                             const char *target,
+                             struct lookup_table *lookup_table);
+
 /* wim.c */
 extern WIMStruct *new_wim_struct();
 extern int wimlib_select_image(WIMStruct *w, int image);